Non-toppling block.



A. B. J. LUCKHURST.

NON-TOPPLING BLOCK.

APILIOATION FILED JULYIB, 101 2.

n mt mm WM w L J a w n W Patented Dec. 9

UNITED STATES PATENT OFFICE.

ALLEN E. J. LUCKHURST, OF RIDGEWOOD, NEW JERSEY.

NON-TOPPLING BLOCK.

To all whom it may concern:

Be it known that I, ALLEN E. J. LUCK- ii'ons'r, a citizen of the UnitedStates, residing at Ridgewood, in the county of Bergen and State of NewJersey, have invented a new and useful Non-Toppling Block, of which thefollowing is a specification.

This invention relates to sheave blocks in use with tackle in hoistingand loweringlife boats, and other weights; and the object of myinvention is to provide a simple, cheaplyeonstructed, and efficientdevice, to insure the more perfect working of the blocks and tackle whennot in engagement with a weight, or boat; a further object being toprovide a device of the character described which can be used with anordinary block in common use without material, or any change.

As .now used, it is common for the traveling block to topple over andfoul the ropes, or get the same twisted and mixed in a manner to renderthe operation of the blocks and tackle impossible.

It is the object of this invention to provide simple and eflicient meansto avoid this, and that without involving much additional expense.

The invention is illustrated in the accompanying drawing in which-Figure l, is a perspective view of two blocks and the tackle, with myinvention ap plied to one of the blocks; Fig. 2, is an end view of ablock with my invention applied thereto, and showing a portion of thetackle rope in position; and, Fig. 3, is a plan view of my device.

In the drawing like letters of reference refer to the same parts in eachof the views.

In practice I provide a device a, for at tachment to a block i), soconstructed that it may be secured to said block by screws, or bolts 0,in a manner so that the rope cl, may be rove through the apertures e, ateach side of the device, and be separated by divisions f.

The device is preferably plate-shaped in form, as more particularlyshown in Fig. 2. It may be formed of sheet metal, or of any suitablematerial; but is preferably made of cast iron, brass, or the like; andwhen so made it is evident that the contour of the device may vary, butthe essential features should be maintained which are the later-Specifieation of Letters Patent.

Application filed July 18, 1912.

Patented Dec. 9, 1913.

Serial No. 710,243.

ally-extending portions projecting outward from the block at each sideand tangental to the periphery thereof, and the apertures in theseprojecting portions through which the tackle rope may be rove wherebythe rope is held in fixed position at a sufficient distance above thesheave to prevent the block toppling when relieved of a load, and theconsequent fouling of the rope.

\Vhether made of sheet metal, or a casting, the holes 71, should beprovided so that the device may be quickly attached to any block now in.common use.

The device should have sufiicient weight to keep the ropes undertension, thereby insuring the more perfect working of the tackle whenfree from a load. This is of considerable importance in handling lifeboats where it is impossible to use a detachable weight to keep theblocks and tackle in operative position, as is practised in liftingother weights.

While my device may be applied to a specially-constructed block, it isevident that it can be applied to blocks in common use thereby renderingthe same non-toppling; and it will thus be seen that I have provided asimple and eilicient device for the purpose set forth, and one that canbe manufactured and applied at small cost.

Ila ving thus described my inventiomwhat I claim as new and desire tosecure by Letters Patent of the United States is- The combination with asheave block of a plate of sufficient weight to keep the ropes undertension, said weight being directly fitted upon and rigidly secured tothe top of said block and extending at each side thereof free from theblock, each of said projecting portions being provided with a pluralityof apertures corresponding in number with the number of sheaves in saidblock and in alinement therewith, the walls of said apertures beingadapted to engage the rope above said block, as and for the purpose setforth.

In testimony of which invent-ion I have hereunto set my hand.

ALLEN E. J. LUGKHURST.

Witnesses CHARLES S. PHILIPPS, JOHN SMITH, EDWARD B. SHoULn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patentl, Washington, D. 0.

